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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Ni; Quan
Address:
Shoreview, MN
No. of patents:
56
Patents:


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Patent Number Title Of Patent Date Issued
8301234 Wireless ECG in implantable devices October 30, 2012
An implantable medical device such as an implantable pacemaker or implantable cardioverter/defibrillator includes a programmable sensing circuit providing for sensing of a signal approximating a surface electrocardiogram (ECG) through implanted electrodes. With various electrode conf
8251061 Methods and systems for control of gas therapy August 28, 2012
A gas therapy system involves sensing the blood gas concentration of the patient and adapting a gas therapy based on the sensed gas concentration. Disordered breathing may be detected bases on blood gas concentration, and gas or cardiac electrical therapy may be adapted to treat the
8241212 Cardiac signal display and event detection using multiresolution Z-score transform August 14, 2012
A system comprising a medical device including a processor and a Z-score transformation (ZST) module. The system also includes a display in communication with the processor. The processor is adapted to receive sensor data obtained from at least first and second sensors adapted to pro
8226570 Respiration monitoring for heart failure using implantable device July 24, 2012
An implantable respiration monitor can be used to detect disordered breathing or periodic breathing events that can be categorized, such as according to one or more of sleep, exercise, and resting awake states. The categorized frequency of such events can be compared to independently
8224445 Far-field sensing channel for implantable cardiac device July 17, 2012
An implantable pacemaker is provided with a far-field sensing channel which requires a reduced refractory period during the time when pacing pulses are delivered as compared with sensing channels using intra-cardiac electrodes. The far-field sensing channel may use the conductive hou
8221327 Therapy control based on cardiopulmonary status July 17, 2012
Methods and systems provide an approach to therapy control based on assessment of a patient's cardiopulmonary status. Conditions sensed via sensors of an external respiratory therapy device are used to assess a patient's cardiopulmonary status. The respiratory therapy device sensors
8190256 Methods and devices for implementing time of day pacing adjustments May 29, 2012
Methods and systems are directed to delivering cardiac pacing therapy to a patient. A pacing therapy associated with one or more pacing parameters is delivered. Alternate cardiac pacing therapies associated with one or more alternate pacing parameters are transitioned to, based on a
8160701 Systems and methods for delivering vagal nerve stimulation April 17, 2012
According to various method embodiments, a person is indicated for a therapy to treat a cardiovascular disease, and the therapy is delivered to the person to treat the cardiovascular disease. Delivering the therapy includes delivering a vagal stimulation therapy (VST) to a vagus nerve of
8104470 Coordinated use of respiratory and cardiac therapies for sleep disordered breathing January 31, 2012
Methods and systems involve coordinating therapies used for treating disordered breathing. Disordered breathing therapies may include cardiac electrical stimulation therapy and external respiratory therapy as well as other therapies for treating disordered breathing in a patient. The
8055332 Wireless ECG in implantable devices November 8, 2011
An implantable medical device such as an implantable pacemaker or implantable cardioverter/defibrillator includes a programmable sensing circuit providing for sensing of a signal approximating a surface electrocardiogram (ECG) through implanted electrodes. With various electrode conf
8002553 Sleep quality data collection and evaluation August 23, 2011
A sleep quality assessment approach involves collecting data based on detected physiological or non-physiological patient conditions. At least one of detecting patient conditions and collecting data is performed using an implantable device. Sleep quality may be evaluated using the co
7996083 Far-field sensing channel for implantable cardiac device August 9, 2011
An implantable pacemaker is provided with a far-field sensing channel which requires a reduced refractory period during the time when pacing pulses are delivered as compared with sensing channels using intra-cardiac electrodes. The far-field sensing channel may use the conductive hou
7993279 Methods and systems for implantably monitoring external breathing therapy August 9, 2011
An implantable device is used to monitor one or more conditions associated with an external breathing therapy delivered to the patient. The device may monitor therapy parameters including therapy effectiveness, impact of the therapy on the patient, therapy usage, compliance with a pr
7981042 Use of external respiratory therapy device to detect cardiac electrical activity July 19, 2011
Methods and systems provide an integrated approach to respiratory and cardiac monitoring, diagnosis and/or therapy. A medical system includes one or more cardiac electrodes coupled to an external respiratory therapy device. The cardiac electrodes sense cardiac electrical activity that is
7974708 Calibration of adaptive-rate pacing using intrinsic chronotropic response July 5, 2011
Calibration of adaptive-rate pacing by a cardiac rhythm management system using an intrinsic chronotropic response. The cardiac rhythm management system may include an adaptive-rate pacing device. The adaptive-rate pacing device may include an adaptive-rate sensor module for measuring an
7970470 Diagnosis and/or therapy using blood chemistry/expired gas parameter analysis June 28, 2011
Methods and systems for diagnosing disorders, including, for example, disordered breathing, involve sensing one or more of a blood chemistry parameter and/or an expired gas parameter, such as expired respiratory gas concentration, blood gas concentration, and blood pH. Diagnosis of t
7967756 Respiratory therapy control based on cardiac cycle June 28, 2011
Methods and systems involve adjusting respiratory therapy based on cardiac cycle phase. A parameter indicative of cardiac cycle is sensed and the respiratory therapy is adjusted based on cardiac cycle phase. Modulation of respiratory therapy pressure reinforces the pumping action of
7938782 Prediction of disordered breathing May 10, 2011
An approach for predicting disordered breathing involves detecting one or more conditions associated with disordered breathing. The detected conditions are compared to disordered breathing prediction criteria. A prediction of disordered breathing is performed based on the comparison
7887493 Implantable device employing movement sensing for detecting sleep-related disorders February 15, 2011
Methods and systems for evaluating a pathological condition include acquiring movement information, such as electromyogram (EMG) information, and sleep disordered breathing (SDB) information, and detecting the presence of a pathological condition using both movement and SDB informati
7873414 Patient characteristic based adaptive anti-tachy pacing programming January 18, 2011
A system including at least one implantable sensor circuit adapted to produce an electrical sensor signal related to one or more physiologic cardiovascular events of a subject, a therapy circuit configured to provide anti-tachycardia pacing (ATP) therapy, and a controller. The contro
7840267 Closed-loop resynchronization therapy for mechanical dyssynchrony November 23, 2010
An apparatus comprises a first impedance sensing circuit, a second sensing circuit, and an impedance-based cardiac dyssynchrony detector. The impedance sensing circuit senses an intracardiac local impedance signal that is indicative of a cardiac local wall motion of a first cardiac r
7787946 Patient monitoring, diagnosis, and/or therapy systems and methods August 31, 2010
Systems and methods involve an implantable device configured to perform at least one cardiac-related function, a patient-external respiratory therapy device, and a communication channel configured to facilitate communication between the implantable device and the respiratory therapy
7766840 Method and system for heart failure status evaluation based on a disordered breathing index August 3, 2010
An evaluation of heart failure status is provided based on a disordered breathing index. Patient respiration is sensed and a respiration signal is generated. Disordered breathing episodes are detected based on the respiration signal. A disordered breathing index is determined based on
7757690 System and method for moderating a therapy delivered during sleep using physiologic data acquire July 20, 2010
Systems and methods provide for gathering of patient related data during non-sleep periods and modulating a therapy delivered to the patient during sleep using the gathered data. Data associated with a patient is gathered while the patient is awake. A therapy delivered to the patient
7747323 Adaptive baroreflex stimulation therapy for disordered breathing June 29, 2010
An approach to providing disordered breathing therapy includes delivering electrical stimulation therapy modifying a patient's baroreflex response. Disordered breathing therapy may be delivered in response to prediction or detection of disordered breathing events. Various conditions affe
7720541 Adaptive therapy for disordered breathing May 18, 2010
An approach to providing disordered breathing therapy includes detecting disordered breathing and adapting a therapy to mitigate the disordered breathing. The therapy may be adapted to enhance therapy effectiveness, to provide therapy that reduces an impact of the therapy on the patient,
7720535 Pacing management during cardiopulmonary resuscitation May 18, 2010
Systems and methods provide for coordinated cardiac pacing with delivery of cardiopulmonary resuscitation (CPR) to a patient. Managing cardiac pacing in a patient during a cardiac arrhythmia involves detecting a cardiac arrhythmia using a patient implantable medical device, prompting
7711420 Closed-loop control of cardioprotective pre-excitation pacing May 4, 2010
Cardioprotective pre-excitation pacing may be applied to stress or de-stress a particular myocardial region delivering of pacing pulses in a manner that causes a dyssynchronous contraction. Such dyssynchronous contractions are responsible for the desired cardioprotective effects of p
7680537 Therapy triggered by prediction of disordered breathing March 16, 2010
An approach to providing disordered breathing therapy includes providing therapy based on a prediction of disordered breathing. One or more patient conditions are detected and used to predict disordered breathing. Therapy is delivered to mitigate the predicted disordered breathing. The
7678061 System and method for characterizing patient respiration March 16, 2010
Patient respiration may be characterized using a marked respiration waveform involving a respiration waveform annotated with symbols, markers or other indicators representing one or more respiration characteristics. A respiration waveform may be acquired by sensing a physiological pa
7668591 Automatic activation of medical processes February 23, 2010
Systems and methods involve automatic activation, de-activation or modification of therapies or other medical processes based on brain state. A medical system includes a sensor system having one or more sensors configured to sense signals related to the brain state of the patient. A
7664546 Posture detection system and method February 16, 2010
A posture detection system includes an implantable device and a patient-external respiratory therapy device coupled via a communications channel. At least one of the implantable device and the patient-external respiratory therapy devices includes a posture detector. Posture informati
7662101 Therapy control based on cardiopulmonary status February 16, 2010
Methods and systems provide an approach to therapy control based on assessment of a patient's cardiopulmonary status. Conditions sensed via sensors of an external respiratory therapy device are used to assess a patient's cardiopulmonary status. The respiratory therapy device sensors
7616988 System and method for detecting an involuntary muscle movement disorder November 10, 2009
Methods and systems are directed to evaluating a pathological condition and involve acquiring muscle movement signals, such as electromyogram (EMG) or accelerometer signals, and detecting the presence of the pathological condition. Methods and systems also provide for detecting sleep
7610094 Synergistic use of medical devices for detecting medical disorders October 27, 2009
Methods and systems for detecting medical disorders through synergistic use of one or more medical devices are described. One or more medical devices are selected to sense one or more physiological parameters associated with a medical disorder. A presence of the medical disorder is a
7606616 Calibration of adaptive-rate pacing using intrinsic chronotropic response October 20, 2009
Calibration of adaptive-rate pacing by a cardiac rhythm management system using an intrinsic chronotropic response. The cardiac rhythm management system may include an adaptive-rate pacing device. The adaptive-rate pacing device may include an adaptive-rate sensor module for measuring an
7596413 Coordinated therapy for disordered breathing including baroreflex modulation September 29, 2009
An approach to providing disordered breathing therapy involves the use of a plurality of therapy devices to deliver a coordinated disordered breathing therapy regimen to the patient. The plurality of disordered breathing devices includes at least a therapy device that delivers an ele
7591265 Coordinated use of respiratory and cardiac therapies for sleep disordered breathing September 22, 2009
Methods and systems involve coordinating therapies used for treating disordered breathing. Disordered breathing therapies may include cardiac electrical stimulation therapy and external respiratory therapy as well as other therapies for treating disordered breathing in a patient. The
7577479 Methods and devices for implementing time of day pacing adjustments August 18, 2009
Methods and systems are directed to delivering cardiac pacing therapy to a patient. A pacing therapy associated with one or more pacing parameters is delivered. Alternate cardiac pacing therapies associated with one or more alternate pacing parameters are transitioned to, based on a
7575553 Methods and systems for assessing pulmonary disease August 18, 2009
Sensing physiological conditions using the sensors of a respiratory therapy device can be used to assess a presence of pulmonary diseases other than breathing rhythm disorders. Non-rhythm related pulmonary diseases include, for example, obstructive pulmonary diseases, restrictive pul
7572232 Cardiac signal display and event detection using multiresolution Z-score transform August 11, 2009
A system comprising a medical device including a processor and a Z-score transformation (ZST) module. The system also includes a display in communication with the processor. The processor is adapted to receive sensor data obtained from at least first and second sensors adapted to pro
7572225 Sleep logbook August 11, 2009
An approach to collecting and organizing information associated with events affecting sleep is presented. The sleep logbook system may acquire information associated with the sleep during periods of sleep and/or during periods of wakefulness. The information is organized as a sleep l
7532934 Snoring detection system and method May 12, 2009
Systems and methods provide for detecting snoring, and for determining the presence of sleep disordered breathing using detected snoring. Snoring indicative signals generated by one or more patient-internal or external sensors are detected. The presence of sleep disordered breathing is
7510531 System and method for discrimination of central and obstructive disordered breathing events March 31, 2009
Disordered breathing events may be classified as central, obstructive or a combination of central an obstructive in origin based on patient motion associated with respiratory effort. Central disordered breathing is associated with disrupted respiration with reduced respiratory effort.
7479114 Determining blood gas saturation based on measured parameter of respiration January 20, 2009
Systems and methods provide for determining blood gas saturation based on one or more measured respiration parameters. A parameter of respiration is measured implantably over a duration of time. The measured respiratory parameter is associated with a blood gas saturation level. Blood gas
7469697 Feedback system and method for sleep disordered breathing therapy December 30, 2008
Methods and systems involve monitoring one or more patient conditions using a monitoring device that is fully or partially implantable. Feedback information is developed based on the monitored conditions and is provided to a device delivering therapy to treat sleep disordered breathi
7468040 Methods and systems for implantably monitoring external breathing therapy December 23, 2008
An implantable device is used to monitor one or more conditions associated with an external breathing therapy delivered to the patient. The device may monitor therapy parameters including therapy effectiveness, impact of the therapy on the patient, therapy usage, compliance with a prescr
7440803 Closed loop impedance-based cardiac resynchronization therapy systems, devices, and methods October 21, 2008
This document discusses, among other things, systems, devices, and methods measure an impedance and, in response, adjust an atrioventricular (AV) delay or other cardiac resynchronization therapy (CRT) parameter that synchronizes left and right ventricular contractions. A first example
7396333 Prediction of disordered breathing July 8, 2008
An approach for predicting disordered breathing involves detecting one or more conditions associated with disordered breathing. The detected conditions are compared to disordered breathing prediction criteria. A prediction of disordered breathing is performed based on the comparison
7364547 Use of external respiratory therapy device to detect cardiac electrical activity April 29, 2008
Methods and systems provide an integrated approach to respiratory and cardiac monitoring, diagnosis and/or therapy. A medical system includes one or more cardiac electrodes coupled to an external respiratory therapy device. The cardiac electrodes sense cardiac electrical activity that is
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